What is KeyValueTextInputFormat in Hadoop MapReduce?
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What is Shuffling and Sorting in a MapReduce?
What is a TaskInstance?
Explain the process of spilling in MapReduce?
What do you know about nlineinputformat?
Why do we need MapReduce during Pig programming?
Define MapReduce?
what is "map" and what is "reducer" in Hadoop?
Explain how mapreduce works.
What is a mapreduce algorithm?
Explain what is “map” and what is "reducer" in hadoop?
What is a combiner and where you should use it?
What happens if the quantity of the reducer is 0 in mapreduce?
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